What is the primary benefit of a solid roller camshaft over a flat tappet design?

Solid roller camshafts generally allow for more aggressive lobe profiles, meaning higher lift and duration. This leads to better airflow into and out of the cylinders, resulting in increased horsepower and torque, especially at higher engine speeds.

Does this kit include everything needed for installation?

The kit includes the camshaft, lifters, assembly lube, decals, and instructions. However, it's recommended to have other related components like a new timing set, valve springs compatible with the cam's lift, and potentially pushrods on hand, as these are not included.

How can I tell if my Chevrolet Small Block has a factory roller camshaft?

You will need to remove the intake manifold or timing cover to inspect the camshaft's lifters. If the lifters are roller rockers that pivot on a shaft, your engine has a factory roller cam. If the lifters are flat and ride directly on the cam lobes, it's a flat tappet design compatible with this kit.

COMP Cams Solid Roller Cam & Lifter Kit CL12-705-8

Name: COMP Cams Cam & Lifter Kit CS 300R
Brand: COMP Cams
SKU: comp-cams-comp-cams-cam-lifter-kit-cs-300r-t14-4395674
Price: 1280.06 USD
Availability: BackOrder

COMP Cams Cam & Lifter Kit CS 300R

$1280.06

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

COMP Cams CS 300R Solid Roller Cam and Lifter Kit for Chevrolet Small Block engines. Delivers maximum street effort with a racy idle.

Key Features

Fits a wide range of Chevrolet GEN 1 Small Block engines.
Magnum 255/255 Solid Roller Camshaft for maximum street effort.
Includes matching solid lifters for optimal performance.
Kit comes with assembly lube, decals, and installation instructions.
Designed for use with 3500+ stall converters and low gears.
Pairs well with 10:1 compression and headers for increased power.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

If you're looking to get the most out of your Chevrolet Small Block engine for street performance, the COMP Cams CS 300R Solid Roller Cam and Lifter Kit is a strong contender. This kit is designed for those aiming for maximum street effort, a noticeable racy idle, and pairing with a 3500+ stall converter and low gears. It's an excellent choice when you're running around 10:1 compression and headers, aiming to extract serious performance from your engine.

This kit includes the Magnum 255/255 Solid Roller Camshaft and a set of matching lifters, ensuring they work together seamlessly for optimal performance. You'll also find assembly lube to help with the installation process, along with decals and instructions. The solid roller design means you'll see improved valve lift and duration compared to flat tappet cams, which translates to better airflow and more power, especially at higher RPMs. This is a significant upgrade for engines built for performance, offering a more aggressive power band and a distinct idle note.

This kit is compatible with a wide range of Chevrolet GEN 1 Small Block engines, including popular displacements like the 350, 400, and smaller variants. It's important to verify your engine uses a flat tappet camshaft, as this kit is not compatible with factory roller camshafts found in some later model Small Blocks or the LS-based engines. If you're rebuilding or modifying a classic Small Block for serious street duty, this kit offers a well-built package to achieve your performance goals.